Hi there! Not shure if this is the rigt place to post it but i'll give it a go. I have bougt a tv tuner for my car pc, I have a 7" touch screen with VGA and 2 AV connections, one is used for my reversecamera, the otherone is ment for tv tuner, but when i connect it , notting happens.. There are tree rca jacks coming out from the the tuner, (audio l/r and video) so i tought i'll put the videocable to the spare AV contact on my screen. I have tried the tuner on another screen (not VGA) and there it worked. So...anyone have any idea what to do?